mineral
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2
Hardness: 7 on Mohs scale; Color: Green/Teal; Luster: Vitreous to waxy with aventurescence; Crystal structure: Trigonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.64-2.69
- Hardness
- 7 on Mohs scale
- Color
- Green/Teal
- Luster
- Vitreous to waxy with aventurescence
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Physical properties
Hardness: 7 on Mohs scale; Color: Green/Teal; Luster: Vitreous to waxy with aventurescence; Crystal structure: Trigonal; Cleavage: None/Conchoidal fracture; Specific Gravity: 2.64-2.69
Formation & geological history
Formed in igneous or metamorphic environments where quartz crystallizes and incorporates platy minerals like fuchsite (a green mica) as inclusions. These inclusions create the characteristic shimmer.
Uses & applications
Extensively used for lapidary work, jewelry (beads, cabochons), ornamental carvings, tumbled stones for collectors, and as a decorative landscaping stone.
Geological facts
The name 'Aventurine' comes from the Italian 'a ventura', meaning 'by chance', originally referring to the accidental discovery of aventuras glass in the 18th century. aventurescence refers to the visual effect of sparkling mineral inclusions.
Field identification & locations
Identified by its grainy quartz texture combined with a shimmering green color. Commonly found in India, Brazil, Russia, and Austria. Collectors look for uniform color and strong 'sparkle' from mineral inclusions.
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